*** A melee erupted between two groups inside a Belmont pool hall early yesterday, leaving two victims with head wounds from pool-cue beatings and a third person shot and critically wounded, police sources said.

The incident unfolded at 3 a.m. inside the Mid-Night Billards pool hall, at 610 East Fordham Road. It was unclear what sparked the violence. Police later found six shell casings at the scene.

Paul Hernandez, 29, and Christopher Maxwell, 24, were bashed over the head by one or more assailants and taken to St. Barnabas Hospital for minor injuries.

While at the hospital, a detective learned that a third victim of the dust-up came via taxi to the hospital with a gunshot wound to the abdomen. He was undergoing surgery.

*** A youth who left a party at a Mott Haven community center early yesterday was stabbed in the back after he apparently avenged the honor of a female friend whom someone called a “bitch,” police sources said.

Charles Eddy, 21, was cut in the back at 2 a.m. outside 525 Jackson Ave. His wounds were not believed to be life-threatening, sources said.

The suspect was described as approximately 25 years old, 5-foot-10 and 260 pounds, wearing a yellow jacket.

*** Two carjackers shot a man in the leg at the Grand Concourse and East 183rd Street yesterday afternoon.

The 38-year-old victim was listed in stable condition last night at St. Barnabas Hospital.

His assailants fled in the victim’s purple Caravan with Pennsylvania plates. The vehicle was later recovered at the corner of Fordham Road and Southern Boulevard.

QUEENS

*** Police are seeking to identify four suspects – two of whom are pictured top, right – responsible for stealing some $6,000 from a Flushing businessman this month.

The caper went down at 9 p.m. Jan. 8 when three men and a woman entered the Unique 99 Cent Store, at 34-32 Union St., forced the owner to the back and made off with the shop’s receipts, cops said.

Nobody was hurt in the robbery, and the suspects fled in a BMW described as being dark green or possibly black.

Their images, however, were captured on surveillance video. They are described as follows:

* The woman is 20 to 25 years old, weighs about 200, has short hair and was wearing earrings.

* One man is 30 to 35, weighs about 200 and had on a white sweatshirt, black pants and a black skullcap.

* A second man is about 5-foot-10 and had on a black leather jacket, a black ski cap and tan boots.

* And the last member of the team stands 5-foot-8, weighs about 230, has short curly hair and was wearing a black jacket, a cream sweater and white sneakers.

STATEN ISLAND

*** Police arrested two women suspected of repeatedly soliciting male passers-by in a location known to be a hangout for prostitutes, sources said yesterday.

Lorie Guida, 35, was busted at 12:40 a.m. Friday at the corner of Richmond Terrace and Van Pelt Avenue, in the Mariners Harbor section, after being seen stopping four men on the street and three in passing cars , police said.

At 1:35 a.m., Grace Pica, 48, was taken into custody after being spotted flagging down three motorists at the intersection of Tompkins Avenue and Norwood Avenue, in the Clifton section, according to police.

Both women live on Staten Island, and both are charged with loitering for the purpose of engaging in prostitution.